有关UNICODE的字符操作集合

下面是在UNICODE编程环境下的字符的相关操作，请切记。

很有用处的！！！！！！！

/* ++++++++++++++++++++ UNICODE ++++++++++++++++++++ */

#define _TEOF       WEOF

#define _tmain      wmain

#ifdef UNDER_CE
# define _tWinMain   WinMain // On CE it's always WinMain
#else
# define _tWinMain   wWinMain
#endif

/* Formatted i/o */
#define _tprintf    wprintf
#define _ftprintf   fwprintf
#define _stprintf   swprintf
#define _sntprintf  _snwprintf
#define _vtprintf   vwprintf
#define _vftprintf  vfwprintf
#define _vstprintf  vswprintf
#define _vsntprintf _vsnwprintf
#define _tscanf     wscanf
#define _ftscanf    fwscanf
#define _stscanf    swscanf

/* Unformatted i/o */
#define _fgettc     fgetwc
#define _fgetts     fgetws
#define _fputtc     fputwc
#define _fputts     fputws
#define _gettc      getwc
#define _gettchar   getwchar
#define _getts      _getws
#define _puttc      putwc
#define _puttchar   putwchar
#define _putts      _putws
#define _ungettc    ungetwc

// Stdio functions
#define _tfopen     _wfopen
#define _tfreopen   _wfreopen

/* String conversion functions */
#define _tcstod     wcstod
#define _tcstol     wcstol
#define _tcstoul    wcstoul

#define _itot       _itow
#define _ltot       _ltow
#define _ultot      _ultow
#define _ttoi       _wtoi
#define _ttol       _wtol
#define _ttoi64     _wtoi64

/* String functions */
#define _tcscat     wcscat
#define _tcschr     wcschr
#define _tcscmp     wcscmp
#define _tcscpy     wcscpy              /////这个是将字符串1 copy 到字符串2
#define _tcscspn    wcscspn
#define _tcslen     wcslen
#define _tcsclen    wcslen

#define _tcsncat    wcsncat
#define _tcsnccat   wcsncat
#define _tcsnccmp   wcsncmp
#define _tcsncmp    wcsncmp
#define _tcsncpy    wcsncpy
#define _tcsnccpy   wcsncpy
#define _tcspbrk    wcspbrk
#define _tcsrchr    wcsrchr
#define _tcsspn     wcsspn
#define _tcsstr     wcsstr
#define _tcstok     wcstok
#define _tcsdup     _wcsdup
#define _tcsicmp    _wcsicmp
#define _tcsncicmp  _wcsnicmp
#define _tcsnicmp   _wcsnicmp
#define _tcsnset    _wcsnset
#define _tcsncset   _wcsnset
#define _tcsrev     _wcsrev
#define _tcsset     _wcsset

#define _tcslwr     _wcslwr
#define _tcsupr     _wcsupr

// ctype functions
#define _istalpha   iswalpha
#define _istupper   iswupper
#define _istlower   iswlower
#define _istdigit   iswdigit
#define _istxdigit  iswxdigit
#define _istspace   iswspace
#define _istpunct   iswpunct
#define _istalnum   iswalnum
#define _istprint   iswprint
#define _istgraph   iswgraph
#define _istcntrl   iswcntrl
#define _istascii   iswascii

#define _totupper   towupper
#define _totlower   towlower

#define _istlegal(_c)    (1)
#define _istlead(_c)     (0)
#define _istleadbyte(_c)    (0)

#else   /* ndef UNICODE */ 

实例部分用法：

void DoWithDSPFile(LPTSTR szDSPFileName)
{
  VC::VCProjectEnginePtr  ptrVC(__uuidof(
                                VC::VCProjectEngineObject));
                                   // for project conversion
  EnvDTE::ProjectItemPtr  proj;    // not used
  VC::VCProjectPtr  ptrProject;    // smart ptr to project
  TCHAR  szCurDir[_MAX_PATH];      // full path to current
                                   // directory
  _bstr_t   bstrCD;                // smart bstring version of
                                   // the above
  TCHAR    szVCProj[_MAX_PATH];    // full path to the new
                                   // .vcproj file
  _bstr_t   bstrVCProj;            // bstr version of above
  TCHAR  szDSP[_MAX_PATH];         // full path to the old .dsp
                                   // file to convert
  TCHAR  szBareVCProj[_MAX_PATH];  // bare VCProj project name
                                   // with eg myproj.vcproj
  TCHAR  szSoln[_MAX_PATH];        // solution
  TCHAR  szBareName[_MAX_PATH];    // solution bare name
  _bstr_t   bstrBareSoln;          // bare (base) solution name
  TCHAR*   p;                      // pointer to a subsbring

  // grab our directory
  _tgetcwd(szCurDir, _MAX_PATH);
  bstrCD = szCurDir;

  _tcscpy(szVCProj, szCurDir);
  PathAddBackslash(szVCProj);

  // add original name
  _tcscat(szVCProj, szDSPFileName);

  // replace extension with .vcproj
  p = PathFindExtension(szVCProj);
  _tcscpy(p, _T(".vcproj"));

  // did we already do it?
  if (PathFileExists(szVCProj))
  {

    // tell the user & go to next file
    _ftprintf(stdout, _T("Skipping %s because already converted/n"),
              szVCProj);
    return;
  }

  // OK using smart pointers here, need try/catch
  try
  {
    // get full path to DSP file
    _tcscpy(szDSP, szCurDir);
    PathAddBackslash(szDSP);
    _tcscat(szDSP, szDSPFileName);

    // load old dsp file
    ptrProject = ptrVC->LoadProject(szDSP);

      // generate name from .DSP name (same base name)
    _tcscpy(szBareVCProj, szDSPFileName);
    p = PathFindExtension(szBareVCProj);
    _tcscpy(p, _T(".vcproj"));

    // name the project as proj.vcproj
    ptrProject->PutProjectFile(szBareVCProj);

    // save converted project (this will create the .vcproj file
    ptrProject->Save();

    // need to worry about creating a solution (.sln) file.
    // This was the hard part to figure out.
    _tcscpy(szSoln, szDSPFileName);
    p = PathFindExtension(szSoln);
    _tcscpy(p, _T(".sln"));
    _tgetcwd(szCurDir, _MAX_PATH);

    // create empty solution
    EnvDTE::_SolutionPtr ptrSoln(_T("VisualStudio.Solution.7.1"));

    // get the bare name for the solution
    _tcscpy(szBareName, szDSPFileName);
    p = PathFindExtension(szBareName);
    *p = 0;    // cut off at extension

    // get a bstring
    bstrBareSoln = szBareName;

    // and create the empty solution
    ptrSoln->Create(bstrCD, bstrBareSoln);

    // get the filename of our new solution
    bstrVCProj = szVCProj;

    // and add it into the newly created solution, replacing
    // whatever was there
    ptrSoln->AddFromFile(bstrVCProj, FALSE,
                        (EnvDTE::Project**)&proj);

    _ftprintf(stdout, _T("Project %s converted OK/n"), szVCProj);
  }
  catch(...)
  {
    _ftprintf(stdout, _T("Something bad happened.../n"));
  }

}